Reconstructed Compton profiles (2D real space). Left: reconstructed Compton profile (2D real space) from the data points of Fig. 5 left. The 68% C.L. envelope is shown in red and the mean in black. The solid green line is the PIPV profile. The solid blue line is the best gNFW fit. The dashed blue lines delineate the 68% C.L. of the gNFW fit. In the bottom panel, the ratio is computed with respect to the best fit. Right: same as the left panel, but with simulated UPP profiles injected into actual data, extracted and reconstructed using the same method as on the real clusters. We performed three injections of simulated SPT clusters at different locations. The reconstructed profiles are in red, orange and cyan. The solid bright blue line is the UPP.